hxxp://www[.]iyfubh[.]com

Analysis

max time kernel
217s
max time network
221s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
03/11/2023, 19:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

http://www.iyfubh.com

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 5 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	firefox.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	firefox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~Mhz	firefox.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000_Classes\Local Settings	firefox.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	552	firefox.exe
Token: SeDebugPrivilege	552	firefox.exe
Token: SeDebugPrivilege	552	firefox.exe
Token: SeDebugPrivilege	552	firefox.exe
Token: SeDebugPrivilege	552	firefox.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
552	firefox.exe
552	firefox.exe
552	firefox.exe
552	firefox.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
552	firefox.exe
552	firefox.exe
552	firefox.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
552	firefox.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4376 wrote to memory of 552	4376	firefox.exe	24
PID 4376 wrote to memory of 552	4376	firefox.exe	24
PID 4376 wrote to memory of 552	4376	firefox.exe	24
PID 4376 wrote to memory of 552	4376	firefox.exe	24
PID 4376 wrote to memory of 552	4376	firefox.exe	24
PID 4376 wrote to memory of 552	4376	firefox.exe	24
PID 4376 wrote to memory of 552	4376	firefox.exe	24
PID 4376 wrote to memory of 552	4376	firefox.exe	24
PID 4376 wrote to memory of 552	4376	firefox.exe	24
PID 4376 wrote to memory of 552	4376	firefox.exe	24
PID 4376 wrote to memory of 552	4376	firefox.exe	24
PID 552 wrote to memory of 3280	552	firefox.exe	85
PID 552 wrote to memory of 3280	552	firefox.exe	85
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3328	552	firefox.exe	86
PID 552 wrote to memory of 3616	552	firefox.exe	87
PID 552 wrote to memory of 3616	552	firefox.exe	87
PID 552 wrote to memory of 3616	552	firefox.exe	87

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Program Files\Mozilla Firefox\firefox.exe
"C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "http://www.iyfubh.com"
1⤵
- Suspicious use of WriteProcessMemory
PID:4376
- C:\Program Files\Mozilla Firefox\firefox.exe
  "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url http://www.iyfubh.com
  2⤵
  - Checks processor information in registry
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:552
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="552.0.862060309\1914807400" -parentBuildID 20221007134813 -prefsHandle 1928 -prefMapHandle 1920 -prefsLen 20938 -prefMapSize 232675 -appDir "C:\Program Files\Mozilla Firefox\browser" - {cd72e560-32fc-4347-9b3d-af5839bc09b7} 552 "\\.\pipe\gecko-crash-server-pipe.552" 2008 28d75cd6d58 gpu
    3⤵
    PID:3280
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="552.1.221955411\703388613" -parentBuildID 20221007134813 -prefsHandle 2408 -prefMapHandle 2404 -prefsLen 21754 -prefMapSize 232675 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {32ebe362-fe11-49d5-a091-dabbbac01685} 552 "\\.\pipe\gecko-crash-server-pipe.552" 2424 28d75c03258 socket
    3⤵
    PID:3328
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="552.2.929862461\1256073327" -childID 1 -isForBrowser -prefsHandle 2972 -prefMapHandle 3092 -prefsLen 21857 -prefMapSize 232675 -jsInitHandle 1348 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {39f36f71-bb4a-4278-ab7d-240760b19472} 552 "\\.\pipe\gecko-crash-server-pipe.552" 3120 28d79ee8658 tab
    3⤵
    PID:3616
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="552.3.1764260696\1749002787" -childID 2 -isForBrowser -prefsHandle 3552 -prefMapHandle 3372 -prefsLen 26437 -prefMapSize 232675 -jsInitHandle 1348 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {11e74c0e-80ff-465d-bcad-084843b4644e} 552 "\\.\pipe\gecko-crash-server-pipe.552" 3648 28d7b222f58 tab
    3⤵
    PID:4712
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="552.4.399662414\1166923944" -childID 3 -isForBrowser -prefsHandle 5080 -prefMapHandle 5060 -prefsLen 26752 -prefMapSize 232675 -jsInitHandle 1348 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {c56f7d22-7d59-4233-a97b-4688bb081d07} 552 "\\.\pipe\gecko-crash-server-pipe.552" 5036 28d7be3dc58 tab
    3⤵
    PID:1508
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="552.5.668775901\362372589" -childID 4 -isForBrowser -prefsHandle 5200 -prefMapHandle 5204 -prefsLen 26752 -prefMapSize 232675 -jsInitHandle 1348 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {1e998dbb-62cf-414b-a7a1-0793314a81c8} 552 "\\.\pipe\gecko-crash-server-pipe.552" 5192 28d7c68ee58 tab
    3⤵
    PID:1740
- - C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="552.6.307491442\1650999777" -childID 5 -isForBrowser -prefsHandle 5396 -prefMapHandle 5400 -prefsLen 26752 -prefMapSize 232675 -jsInitHandle 1348 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {6c6ac661-6b05-42ee-81d4-d3f7de6b70ff} 552 "\\.\pipe\gecko-crash-server-pipe.552" 5384 28d7c68f458 tab
    3⤵
    PID:2316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\snaxaw5u.default-release\activity-stream.discovery_stream.json.tmp

Filesize
22KB

MD5
c948920785ee1272437096481e5543ba

SHA1
2c430d0995e0c1642f1a90b328c4081378e12a51

SHA256
c907706ba2a12b097759617bad1404e324bc1a0ca1af99fd5b3696102ae6d657

SHA512
ed7339f5dafebde95095f899de518b40b094fd18161db1bc4e66c4d14f23307ebc43bbcb09a3656671e452139f331dd8c16738a6ce1857aa41fa78c8e7549572

Download Submit
C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\snaxaw5u.default-release\cache2\entries\51D52D298316CD3F9A90A40E946BB34EFA1BFB72

Filesize
13KB

MD5
24dd795e882ea6146d57246214c4117e

SHA1
f9bdc84f4edf8952687125fcc2dee135767523ca

SHA256
e919acbc66101b60d75ad73b757048916e27c905977016a187a0e53aab1c843f

SHA512
f128064cf7e34058c5a2bfe3d245500ab02742f075221bbc4ce0dbd96e5ee8a71f50c2e352bc98383c95b52775224fba0c4e5cc283a6297640ac8e32834de429

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpaddon

Filesize
442KB

MD5
85430baed3398695717b0263807cf97c

SHA1
fffbee923cea216f50fce5d54219a188a5100f41

SHA256
a9f4281f82b3579581c389e8583dc9f477c7fd0e20c9dfc91a2e611e21e3407e

SHA512
06511f1f6c6d44d076b3c593528c26a602348d9c41689dbf5ff716b671c3ca5756b12cb2e5869f836dedce27b1a5cfe79b93c707fd01f8e84b620923bb61b5f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpaddon-1

Filesize
8.0MB

MD5
a01c5ecd6108350ae23d2cddf0e77c17

SHA1
c6ac28a2cd979f1f9a75d56271821d5ff665e2b6

SHA256
345d44e3aa3e1967d186a43d732c8051235c43458169a5d7d371780a6475ee42

SHA512
b046dd1b26ec0b810ee441b7ad4dc135e3f1521a817b9f3db60a32976352e8f7e53920e1a77fc5b4130aac260d79deef7e823267b4414e9cc774d8bffca56a72

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.dll

Filesize
997KB

MD5
fe3355639648c417e8307c6d051e3e37

SHA1
f54602d4b4778da21bc97c7238fc66aa68c8ee34

SHA256
1ed7877024be63a049da98733fd282c16bd620530a4fb580dacec3a78ace914e

SHA512
8f4030bb2464b98eccbea6f06eb186d7216932702d94f6b84c56419e9cf65a18309711ab342d1513bf85aed402bc3535a70db4395874828f0d35c278dd2eac9c

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.info

Filesize
116B

MD5
3d33cdc0b3d281e67dd52e14435dd04f

SHA1
4db88689282fd4f9e9e6ab95fcbb23df6e6485db

SHA256
f526e9f98841d987606efeaff7f3e017ba9fd516c4be83890c7f9a093ea4c47b

SHA512
a4a96743332cc8ef0f86bc2e6122618bfc75ed46781dadbac9e580cd73df89e74738638a2cccb4caa4cbbf393d771d7f2c73f825737cdb247362450a0d4a4bc1

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\gmp-widevinecdm\4.10.2557.0\LICENSE.txt

Filesize
479B

MD5
49ddb419d96dceb9069018535fb2e2fc

SHA1
62aa6fea895a8b68d468a015f6e6ab400d7a7ca6

SHA256
2af127b4e00f7303de8271996c0c681063e4dc7abdc7b2a8c3fe5932b9352539

SHA512
48386217dabf7556e381ab3f5924b123a0a525969ff98f91efb03b65477c94e48a15d9abcec116b54616d36ad52b6f1d7b8b84c49c204e1b9b43f26f2af92da2

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\gmp-widevinecdm\4.10.2557.0\manifest.json

Filesize
372B

MD5
8be33af717bb1b67fbd61c3f4b807e9e

SHA1
7cf17656d174d951957ff36810e874a134dd49e0

SHA256
e92d3394635edfb987a7528e0ccd24360e07a299078df2a6967ca3aae22fa2dd

SHA512
6125f60418e25fee896bf59f5672945cd8f36f03665c721837bb50adf5b4dfef2dddbfcfc817555027dcfa90e1ef2a1e80af1219e8063629ea70263d2fc936a7

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll

Filesize
11.8MB

MD5
33bf7b0439480effb9fb212efce87b13

SHA1
cee50f2745edc6dc291887b6075ca64d716f495a

SHA256
8ee42d9258e20bbc5bfdfae61605429beb5421ffeaaa0d02b86d4978f4b4ac4e

SHA512
d329a1a1d98e302142f2776de8cc2cd45a465d77cb21c461bdf5ee58c68073a715519f449cb673977288fe18401a0abcce636c85abaec61a4a7a08a16c924275

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.lib

Filesize
1KB

MD5
688bed3676d2104e7f17ae1cd2c59404

SHA1
952b2cdf783ac72fcb98338723e9afd38d47ad8e

SHA256
33899a3ebc22cb8ed8de7bd48c1c29486c0279b06d7ef98241c92aef4e3b9237

SHA512
7a0e3791f75c229af79dd302f7d0594279f664886fea228cfe78e24ef185ae63aba809aa1036feb3130066deadc8e78909c277f0a7ed1e3485df3cf2cd329776

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.sig

Filesize
1KB

MD5
937326fead5fd401f6cca9118bd9ade9

SHA1
4526a57d4ae14ed29b37632c72aef3c408189d91

SHA256
68a03f075db104f84afdd8fca45a7e4bff7b55dc1a2a24272b3abe16d8759c81

SHA512
b232f6cf3f88adb346281167ac714c4c4c7aac15175087c336911946d12d63d3a3a458e06b298b41a7ec582ef09fe238da3a3166ff89c450117228f7485c22d2

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\prefs-1.js

Filesize
8KB

MD5
d5deaa72019e11ff59a1610b917b9a26

SHA1
8c29664055d39b922bf8c42155dcc6b419ab02fa

SHA256
e57fd2d87c7398e3a31fb3ee655d475ad4df609bc535fc45ba457a98fb3e284b

SHA512
d613d492f4fa34435f242bd13ef7748fc85a4e52d46623d98b4651b411b97d970cc1ce77fab95d9dcf6ec2c97a6c35aafb4b3ec4cf97bfdce7dccafd1302ccbc

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\prefs-1.js

Filesize
7KB

MD5
2399982841e7933bf4413262b7e2c0f5

SHA1
13bbe56030a00fa8c81b8be5af6630a011f3844a

SHA256
91d31cefc5ec4f49e39195ca0411c7c393bfd7f4cd6c0ecde40910ae53118f3f

SHA512
244f41ff00819cbd9435f234729e0d87b6dd8682ca7b504d3bbf132f9101745f0c642762428b3be739f3fd87caddfdc9f7a38e2b34077fb79ba0f29741985b71

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\prefs.js

Filesize
6KB

MD5
2dda0d2bbafa02373b6a3c26db1c6f8c

SHA1
ed324a515dbb30bfb71840d0430bf673424ed96a

SHA256
56c152d6dc175aa9a0a63f3476559823bc77b3505edd4a75fe9be2bbd2662aa6

SHA512
92c9cf76bfc33a5b7a8143d4c62eed59f9b4bc7c72dc2ad21b98cb1b626bf8b7893206f944608aa65bd01b3b8d8e43ccdd9460b46449a1a7f9540c648ff4654e

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\sessionstore-backups\recovery.jsonlz4

Filesize
1KB

MD5
a4801f5fece903b5258d41658de973d7

SHA1
e966abd006a408a0a450af3942388e05cd8112d6

SHA256
3c9b53b7c1409890826c4325273fb65a18b0d956f7ea27615b87704089229f70

SHA512
ceca46be00bd7a71593b8edfa729b9303d1cb59fee729b12df8046d04d6f6734520b1c4f6f9ab9ae1d358bfadc7a637e27c643eed6c9fa8cd711af1acae31f83

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\snaxaw5u.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite

Filesize
1.4MB

MD5
a34cff058d9fa4faa8050bd5f6d12a0b

SHA1
2a2475670ad478093c2bbab1e4cddf1207fab218

SHA256
0c716f7cb8c7e92dd18affecd94ebb69b36f09b446ac71ef0b49cb85290c9d9b

SHA512
84db0f16ab7430c2019f215d5565a7c3a9a942a211770775f165be2adc338c7cce6c7530bb2132ed0e88058c9446e414d8f473f17acacf96d07432e9922acd1e

Download Submit